DSC1104/24
Low Jitter Precision HCSL Oscillator
Features
General Description
• Low RMS Phase Jitter: <1 ps (typ.)
The DSC1104 and DSC1124 series of high
performance oscillators utilizes a proven silicon MEMS
technology to provide excellent jitter and stability over
a wide range of supply voltages and temperatures. By
eliminating the need for quartz or SAW technology,
MEMS oscillators significantly enhance reliability and
accelerate product development, while meeting
stringent clock performance criteria for a variety of
communications, storage, and networking applications.
• High Stability: ±10 ppm, ±20 ppm, ±25 ppm,
±50 ppm
• Wide Temperature Range
- Industrial: –40°C to +85°C
- Ext. Commercial: –20°C to +70°C
- Ext. Industrial: –40°C to +105°C
• High Supply Noise Rejection: –50 dBc
• Wide Frequency Range: 2.3 MHz to 460 MHz
• Small Industry Standard Footprints:
DSC1104 has a standby feature allowing it to
completely power down when EN pin is pulled low;
whereas for DSC1124, only the outputs are disabled
when EN is low. Both oscillators are available in
industry standard packages, including the small
2.5 mm x 2.0 mm, and are drop-in replacements for
standard 6-pin HCSL quartz crystal oscillators.
- 2.5 mm x 2.0 mm, 3.2 mm x 2.5 mm,
5.0 mm x 3.2 mm, and 7.0 mm x 5.0 mm
• Excellent Shock and Vibration Immunity
- Qualified to MIL-STD-883
• High Reliability
- 20x Better MTF than Quartz Oscillators
• Low Current Consumption
Block Diagram
• Supply Range of 2.25V to 3.6V
• Standby and Output Enable Function
• Lead Free and RoHS Compliant
Pin 1
ENABLE
Pin 6
VDD
TEMP SENSOR &
COMPENSATION
CIRCUITRY
Applications
• Storage Area Networks
- SATA, SAS, Fibre Channel
• Passive Optical Networks
- EPON, 10G-EPON, GPON, 10G-PON
• Ethernet
Pin 2
NC
Pin 5
OUTPUT
MEMS
PLL
DIVIDER
DRIVER
OSCILLATOR
Pin 3
GND
Pin 4
OUTPUT
- 1G, 10GBASE-T/KR/LR/SR, and FCoE
• HD/SD/SDI Video and Surveillance
• PCI Express: Gen 1 to Gen 4
• Display Port
TABLE 1:
EN Pin
OUTPUT ENABLE MODES
DSC1104
DSC1124
High
NC
Outputs Active
Outputs Active
Standby
Outputs Active
Outputs Active
Outputs Disabled
Low
2017 Microchip Technology Inc.
DS20005870A-page 1